Competition: five copies of Olafur Eliasson's Unspoken Spaces book to be won

Competition: Dezeen has teamed up with publisher Thames & Hudson to give five readers a copy of a new book that explores architecture and design projects by artist Olafur Eliasson (+ slideshow).

Congratulations to the winners! Steph Lovatt from the UK, Merilyn Anastasiou from Cyprus, Yohanna Rieckhoff from Switzerland, Dylan Keith from Canada and Francisco Pereira from Portugal.

Unspoken Spaces: Studio Olafur Eliasson collates a range of the Danish-Icelandic artist's work over three decades, from small-scale experiments to large public projects.

Olafur Eliasson teamed up with Henning Larsen Architects and Batteriid Architects on the Harpa concert hall and conference centre in Reykjavík, Iceland

Featured projects include the Serpentine Gallery Pavilion 2007 in London – described by the gallery's former director Julia Peyton Jones as looking like a "spinning top" – and the coloured walkway Your Rainbow Panorama in Aarhus, Denmark.

The crystalline facade for the Harpa Concert Hall and Conference Centre in Reykjavik and the Circle Bridge in Copenhagen, Denmark, which was completed last year, are also included.

Eliasson's Circle Bridge in Copenhagen features a series of wire masts based on ships' rigging

Each project is presented with vivid photographs, alongside a personal statement from Eliasson.

Another section of the book explores Eliasson's unrealised and unfinished projects, which have never appeared in print and are described by the designer as "reality machines."

Olafur Eliasson worked with Snøhetta on the 2007 Serpentine Gallery Pavilion, which resembled a spinning top

Eight essays by writers across a variety of fields – from geologists and historians of art and science, to architects, artists and philosophers – offer further insight into the artist's work.

The contributing writers are Alex Coles, Lorraine Daston, Carol Diehl, Eric Ellingsen, Caroline Jones, Timothy Morton, Molly Nesbit, Terry Perk and Minik Rosing.

For his first solo exhibition at Denmark's Louisiana Museum of Modern Art, Eliasson filled an entire wing with a landscape of stones meant to emulate a riverbed

Eliasson, who is based in Copenhagen and Berlin, works in a wide range of media, including installation, painting, sculpture, photography, film, and architecture.

Other examples of the artist's projects include the 2014 installation at Denmark's Louisiana Museum of Modern Art, where he filled an entire wing of the building with a rocky landscape. In 2013, his tears were used to make human cheese for an exhibition about synthetic biology.

Unspoken Spaces by Thames & Hudson
Unspoken Spaces: Studio Olafur Eliasson collates a range of the Danish-Icelandic artist's work over three decades, from small-scale experiments to large public projects

Eliasson established Studio Olafur Eliasson in Berlin in 1995. In 2014 he founded an international office for art and architecture, called Studio Other Spaces, to focus on interdisciplinary and experimental building projects and works in public space.

Five winners will receive one copy of Unspoken Spaces: Studio Olafur Eliasson.

This competition is now closed. Five winners will be selected at random and notified by email, and their name will be published at the top of this page. Dezeen competitions are international and entries are accepted from readers in any country.